Brush.



Patented Dec. I6, |902. A. W. ENGEL.

B R U SH (Application led Sept. 2, 1902.)

(Nn Model.)l

IoV

NITE ALBERT W. ENGEL, OF CHICAGO, ILLINOIS.

BRUSH.

SPECIFICATION forming part of Letters Patent No. 716,210, dated December16, 1902.

" Appleman sied september 2,1902. saranno. 121,754. (No model.)

T0. all whom t ,may concern:

Be it known thatI, ALBERT W. ENGEL, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois', haveinvented certain new and useful Improvements in Brushes, of which thefollowing is a specification, reference being had to the accompanyingdrawings, forminga part thereof. l,

The purpose of` this invention is to provide an improved constructionfor brushes, and in certain features it is designed especially for lbrushes used in bottle-washingand which are `rotated and supplied withwater through a l by which` it is driven.

hollow shaft to which the brush is detachably connected, and these`features of` my invention have thefspecific purposelofl rendering thebrush proper-#that is', the stem and bristles or equivalentelements-readily disengageable from the device by which it is connectedto the shaft, so that worn-out brushes may be discarded and replaced bynew ones with .minimum expense.

`It consists in the features of construction which are set out in theclaims.

In the drawings, Figure 1., is side elevation of my improved brush andportion of the shaft p Fig. 2 is a section at the line 2 2 on Fig. 1.Fig. 3 is a section at the line 3 3 on Fig. 2. Fig. 4 is a sectionsimilar to Fig. 2, showing a modified form. Fig. 5 is a detail sectionat the line 5 5 on Fig. 4. Fig., 6 is a section similar to Fig. 2,showing a fur-` v ther modification in the structure.

Fig. 7 is a section at the line 7 7 on Fig.` 6. Fig. 8 is a sectionalviewsimilar to Fig. 2, showing another modification. Fig. 9 is a sectionat the line 9 9 on Fig. 8.` Fig. 10 is an elevation of a hand-brushembodying some of the principles of myinvention. of a blank which `is,employed formforming a clasp to deflect thebristles to one side.` =Fig.

12 is a view of another somewhat similar. clasp, same being shown foldedas when clasp- Fig. 11 is a plan view tated. 3 is a sleeve which isscrewed onto the threaded end of the hollow shaft 2 and serves to attachthe brush to the shaft. 4 is the stem of the brush, `which is made oftwisted wire, having bristles involved in the twist of the wire in amanner which is well understood and need not be specifically illustratedor described. 5 5 are two wings or oppositelyprojecting portions of thebristles. 6 represents an axially-protruding bunch' of bristles. Thewire forming the stem 4 is folded upon itself preparatory to beingtwisted to involve the bristles and forms atthe fold an eye 7, which ispreferably` oblong, fas illustrated. The sleeve 3 has near the base orend at which it is attached to the shaft 2 oppositely-situated ob ngapertures 8 8, through which a key..r lmay be inserted, taking throughthe eye 7 of the stem. The position of the key when thus inserted issuch that the end of the shaft 2 when screwed into the sleeveI mayencounter the key, and by being screwed farther in after such encounterthe shaft binds the key tightly in place and causes it to retain thestem of the brush and constitute by its `engagement with the eye of thelatter the means of transmitting rotary motion to the brush. To renderthis result more certain and the attachment of the brush by its stem toits sleeve more securelby preventing the escape of the key 9 even if theclamping-presslight recess or rabbet 10 at each end, forming shoulders1l 1l, which enter between the opposite walls of the sleeve when theshaft is screwed against the key, thus locking the key in place.

In Figs. 4 and 5 I have shown a modification consisting in shaping thewire at the end of the stein 4 so that there shall be outwardlyj uttingprojections 12 12, which may take into the apertures 8 8, the wireyielding sufiiciently to permit the stem Withthese projections at theend to be introduced through the sleeve to the point at which theprojections may engage the apertures,lthe elastic reaction of the wirebeing relied upon to effect the engagement. The end of the shaft screweddown against the eye or the projection is then relied upon to render theengage- ICO ythan in the other forms illustrated, and instead ofprovidingr the apertures shown in the other forms a shoulder or seat 13is left at the foot of the thread by which the sleeve is screwed ontothe shaft, and channels 14 14 extend from that shoulder on oppositesides to the other end of the sleeve. The sleeve is `then indented toform slight projections 15 I5 for stops opposite each other and eachninety7 degrees around from the channels 14E. With this construction astem having projections 12 12 may be entered with these projectionsfollowing the channels 14 until the shoulder is reached, and then beingturned to take the projections away from the channels, the sleeve beingscrewed onto the shaft, the latter will engage the projections and bindthem on the shoulder, carrying them by friction, perhaps, around againstthe stops 15, formed by theindentations described, and the brush will besecurely held in place, as in the other forms. The form shown in theprincipal figures has the advantage that the brush while securelyretained is flexibly connected to the sleeve, the pin being loose in theeye 7, while being tight in the sleeve.

Another feature of my improved brush consists in a device for gatheringthe bristles in two fiat vanes instead of being left protruding in alldirections, as when merely arranged first in a sheet between the twowires, and then engaged by the twisting of the wires, so that theyprotrude really-in a spiral, but a spiral so closely twisted that theeffect is substantially a cylindrical brush. This device for gatheringbristles into Hat vanes consists of a clip or clamping element 16, cutoutof sheet metal with serpentine orserrated edges, the protruding teethof which are at opposite edges out of line, so that when the device isfolded into approximately cylindrical form each tooth juts toward arecess in the opposite edge. This clip is applied to the brush after itis otherwise formed by parting the bristlesat any longitudinal line andgathering them from the parting-line both ways toward the opposite side,applying the clip partly folded, as shown in Fig. 9, to complete thegathering of the bristles toward the side toward which they are beingfolded, and then further closing up the clip on the bristles and aboutthe stem until it is securely held and securely holds the bristlesgathered to one side, as seen in Fig. 1 Preferably two such clips areemployed, each being used to gather the bristles along part only of thelength of the brush, one part of the bristles being folded and held bythe clip projecting from one side and the other part from the oppositeside. The advantage of this construction of the brush is that therebythe bristles, massed together instead of protrudf ing in all directions,reinforce each other and make a stiffer and more effective brush andalso afford better access for water, which when the brush iscylindrical, having the bristles projecting in all directions, nds itsway obstructed at every point, whereas when the bristles project in avane or blade at one side only at any particular part of the brush theremainder of the space is open for discharge of the water, while therapid rotation of the device as thoroughly distributes it as if thebrush were cylindrical. The offsetting of the two vanes of bristles sothat each revolves in a different path not only balances the brush andmakes it revolve more steadily, but also fnrthers t-he distribution ofthe water to all parts. This method of gathering the bristles to oneside after they have been secured in the stem by twisting the wire so asto make a cylindrical brush may be ernployed in brushes of other formsand with the bristles gathered toward one side throughout the entirelength. In Fig. 10 I have shown a hand-brush of this form, the clip 17,used for gathering and securing the bristles to one side and holdingthem securely, being extended to embrace the entire body of' thebristles.

I claimi l. In a bottle-washing brush in combination with a hollow shaftfor rotating and supplying water to the brush a sleeve interiorlythreaded at one end for screwing it onto the shaft, the brush having itsstem adapted to be inserted in the sleeve from the other end; a meansfor engaging the stem with the sleeve to prevent its withdrawal, saidmeans being encountered and bound in place by the end of the shaft whenthe sleeve is screwed onto the latter.

2. In a bottle-washing brush in combination with a hollow shaft forrotating and supplying water to the brush a sleeve interiorly threadedat one end for screwing onto the shaft, the brush having its stemadapted to be inserted into the sleeve from the other end and having aneye in the inserted end, the sleeve having apertures with which the eyemay be alined transversely; a key inserted through the apertures and theeye and bound in position by the end of the shaft when the latter isscrewed into the sleeve.

3. In a bottle-washing brush in combination with a hollow shaft forrotating and supplying water to the brush a sleeve interiorly threadedat one end for screwing onto the shaft, the brush having its stemadapted to be inserted into the sleeve through the other end and havingan eye in the inserted end, the sleeve having apertures with which theeye may be alined transversely 5 a key inserted through the aperturesand the eye, such key being recessed at the edge toward the brush forengagement with the edges of the apertures in the sleeve, the shaft whenscrewed IOO IIO

Ant' y'the sleeve reaching the key and forcing it into suchengagement.

4:. A brush comprising a stem and bristles engagedtherewith andprotruding transaxially therefrom and a-clip having serpentine orserrated lateral edges folded about the stem and gathering the bristlesfrom both directions toward one side of the stem to form them into aradial vane or sectoral body.

5. A brush comprising a combination -with a stem and bristles engagedtherewith, and protruding therefrom clips for gathering the bristlesinto radial vanes of sectoral bodies, one clip being secured about thestem to form such radial or sectoral body,of bristles extend-I ing partof the length of the stem in one direction therefrom, the other clipbeing similarly applied to gather the bristles on a dif- `ferent portionof the length to the opposite Fside.

i 6. In a brush a clip for gathering and re' `lstraining the bristlestoward one side, having opposite lateral edges indented formingprogjecting teeth alternating with recesses, the `teeth at each edgebeing arranged to project toward the recesses at the opposite edge whenu the clip is folded to clasp the brush.

In testimony whereof I have hereunto set my hand, at Chicago, Illinois,in the presence of two witnesses,.this 26th day of August, A. D. 1901. 4

ALBERT W. ENGEL.

In presence of J. S. ABBOTT, MGERTRUDE ADY.

